Because there is no thing at all, what on earth can provoke dust?
2
于是火头僧慧能在菩提树下也作一首诗:“菩提本无树,明镜亦非台.本来无一物,何处惹尘埃。”
Then the head monk Huineng under the bodhi tree to make a poem:" there is no bodhi tree, mirror nor stand. Original none thing, where the dust alight."